Form 4 Filing for Jason A. Okazaki

Jason A. Okazaki, CEO and President of ASSEMBLY BIOSCIENCES, INC. (ASMB), reported a transaction on March 29, 2026. This transaction involved the acquisition of 50,750 shares of Common Stock under a restricted stock unit (RSU) grant. The RSUs represent 35% of his annual equity grant, which was contingent upon stockholder approval of an amendment to the Issuer's 2018 Stock Incentive Plan. Although granted on March 29, 2026, the RSUs became issuable upon stockholder approval on June 4, 2026, and will vest in four equal installments on March 29, 2027, 2028, 2029, and 2030, assuming continuous service. The reported transaction has a price of $0.00 per share. Following this transaction, Okazaki owns 163,354 shares. Additionally, the filing includes 688 shares acquired under the Employee Stock Purchase Plan on May 14, 2026.